Amino Acid-Based Hydrophobic Cryogels for Efficient Methylene Blue Removal: A Reusable and Eco-Friendly Approach to Dye-Contaminated Wastewater Treatment

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dc.contributor.authorSofuoğlu, M
dc.contributor.authorKuyucu, AE
dc.contributor.authorErol, K
dc.contributor.authorGökmese, F
dc.date.accessioned2026-03-31T13:21:06Z
dc.date.available2026-03-31T13:21:06Z
dc.date.issued2025
dc.description.abstractThe release of synthetic dyes into the environment through industrial wastewater represents a significant environmental concern. In this study, a hydrophobic cryogel, Poly(2-hydroxyethyl methacrylate-N-methacryloyl-L-phenylalanine), was synthesized and employed for the efficient removal of methylene blue from aqueous solutions. The cryogel exhibited a surface area of 6.834 m2/g and a water retention capacity of 218.6%. Adsorption experiments conducted under various conditions revealed a high adsorption capacity of 1304.6 mg/g for MB. Thermodynamic analyses indicated that adsorption occurs spontaneously and follows a monolayer adsorption model. The adsorption capacity increased with temperature and ionic strength, confirming that hydrophobic forces predominantly drive the interaction. Reusability tests showed that the cryogel maintained its adsorption efficiency over five consecutive adsorption-desorption cycles, with a desorption efficiency of up to 98%. These findings demonstrate that Poly(HEMA-MAPA) cryogel is a practical, reusable, and eco-friendly adsorbent for removing methylene blue, a common textile dye pollutant, from water systems.
dc.identifier.doi10.3390/gels11060411
dc.identifier.issn2310-2861
dc.identifier.issue6
dc.identifier.pmid40558711
dc.identifier.urihttp://dx.doi.org/10.3390/gels11060411
dc.identifier.urihttps://hdl.handle.net/11491/9535
dc.identifier.volume11
dc.identifier.wosWOS:001515017700001
dc.language.isoen
dc.publisherMDPI
dc.relation.ispartofGELS-BASEL
dc.subjectadsorption
dc.subjectcryogel
dc.subjectdye
dc.subjecthydrophobic
dc.subjectmethylene blue
dc.subjectphenylalanine
dc.titleAmino Acid-Based Hydrophobic Cryogels for Efficient Methylene Blue Removal: A Reusable and Eco-Friendly Approach to Dye-Contaminated Wastewater Treatment
dc.typeArticle

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